ADL-Ⅲ Automatic air pipe production line is a cost-effective device, ideal for Flange (TDF), angle flange, and Flange (TDC) of hybrid production. The device uses the international popular profiles welded structure is determined by the integration of synthetic material frame and the feeding frame, leveler grooving, red tip of the mouth side port, hydraulic fold, hydraulic shearing and computer control system. Regulate feeding within the support frame synchronous mode, to adapt the volume Φ480-610mm diameter material. 
 Closed loop feedback control system computer, to ensure the accuracy and stability. 
 Control system in the English language can be any conversion. 
 ADL-Ⅲ Automatic duct production line maximum feed speed of 15m/min, the length of error of ± 0.5mm, diagonal error of ± 0.8mm.